Third and fourth point support for brake-beams



c. H.-w|LL|AMS. THIRD AND FOURTH POINT SUPPORT FOR BRAKE BEAMS.

APPLICATION FILED FEB. I4. 1917- I l l ,369,866. Patented Mar. 1, 1921.

4 SHEETS-shin l. l

CVH. WILLIAMS.

TH|RD';AND FOURTH POINT SUPPORT FOBxRAKE BEAMS. APPLICATION FILED ma.I4, I9I7.

1,369,866, Pand Mar. 1,1921

4 SHEETS-SHEET 2 fm/effin? 5 17d/21e@ /4//7//0/715 C. H. WILLIAMS.

THIRD AND FOURTH POINT SUPPORT FUR BRAKE BEAMS.

APPLICATION FILED FEB. I4, IsII.

1,369,866. Patented Mar. 1, 1921 4 sIIEETs-sIIEEI 3.

C. H. WILLIAMS. THIRD AND'PouRTH PoINT SUPPORT Fon BRAKE BEAMS.

APPLICATION FILED FEB. I4, 19u. 1,369,866, Patented M31. 1, 1921.

4 SHEETS-SHEET 4.

' t awww/WJ and Fourth Point Supports for Brake-- Unirse stares CHARLESHANES XfllliLIAIiiS, O" C -ll-CiG-O, LLLENGS, WAY EQUPMENTCOMPANY, OFCHICAGO, ILLIN 01S,l

earner orties. f

.essieiron rro CHICAGO RAIL A CORPORATION or ILLINOIS. i

'rnian Annronn'rn Ponr SUPPORT ron'BnaKE-BEA'MS..

iselasee.

Specification of Letters Patent.

Application filed February lll, 1917.` Serial No. `148,551.'

To all whom t may concern:

Be it known that CHARLES HAiNiis WTILLIAMS; a lcitizen of the UnitedStates, residing at the city of Chicago, county Vof Cook, V.tit-ate ofillinois, have invented a certain new and useful improvement in ThirdBeams, of which the following is al full, clear, and exact description,such as will enable others skilled in the art to which it appertains tomake and yuse the same, reference being had to the accompanying drawinOsforming art of this snecification.

to o

This invention relates broadly to railway rolling stock, andspecifically to certain improvements in the means for supporting thebrake beam of the brake gear for the desired accurate cooperation .withthe wheels of the truck. y f

More specifically it relates to certain improvements in that portion ofthe truck equipment known as the third or fourth point brake beamsupport, and has as its principal object the provision of means wherebythe brake beam may be securely retained against dropping to the track incase of detachment from its normal supporting means, and at the sametime to afford the desired resilient supporting arrangement for Vguidingthe brake beam at the proper elevations in the manipulation of thebrakes.

In present practice, there is a well known Aeither carried on'the strutorcarried on the tension member, are'designed to cooperate with theseupwardlymclined outer portions of the resilient supporting` members,having slidable engagement therewith, such as will permit the necessarymovement of the brake A beam in the application of the'brakes to thewheels and the removal of the same.

My present invention improves upon this,V

construction by affording not only the proper resilient guiding support,but also a stable and rigid mem er', which forms a safety device such aswill catch and support the brake beam incase it becomes vdetached fromits normalv supporting means'.

In the accompanying drawings, I have shown various .forms in which Ymyinvention may be embodied to meet the'iequ'irements of diiferentsituations, and it'ivill be understood that vthe embodiments shown areintended as simplyillnstrative,-and that the invention may beincorporated into various otherforms. 1- 1'* e Figure l isa Vdetail `ofthe truck mechas msm. to which myZ inventionA relates', parte. being invertical section, thefsame showing the arrangement of my invention-for athird point support; Y 'l Fig.- 2 is a similar detail ofanother'embodimentof my invention, the same being arranged as a fourthpoint support; i

Fig. 3 is a similar detaill of a modified form of the invention showinganother arrangement for the fourth point support; Fig. lv is al detailof the form shown in Fig.l 3, being a plan or top Viewl thereof;

i Fig. 5 isa detail partially in verticalsec? tion of a modified formarranged as a third point support; f Y- Fig. 6 is a top or plan view ,ofthe supporting structure employed in Vthe form illustrated in Fig. 5; IFig. 7 is a detail partially in vertical ses tionJC of a thirdl form offourth vpoint suppor i g Fig. 'Tais a detail in the nature of a verticalsection substantially on line A-B of Fig. 7; y l

Fig.V Sis a' detail partlyv in vertical section of a third form of thirdpoint support;

Figs. 9, l0 and ll are similar details showing respectively a fourth,iifth and sixth form of thirdpoint support; A Y Y Fig. 10a is an endView of the formillustrated in Fig. 10j; y

Fig. l2 is a vdetail partly in vertical sec tion illustrating a seventhform. vof third point support; while Figs. 1 3; 14, and l5 aredetailsillustrative respectively of other formsof third point supports. n Y

In all of these several illustrations,let it be understood that thereference character l Y indicates the spring plank of the truck; '-2,the compression lmember of the brake beam; ll--the tension member of thebrake beam; 5 the brake 'beam strut; and 6 the brake head. i These areall conventional in the art. Y y f A,

In the embodiment illustrated in Fig. ll. the rreference character 7indicates WhatI Patented Mar. 1, 19.271.

parts well yknown will designate the safety support, and which f is inthe form of a rif/'id bar member of an "brake beam, and its outerextremity may be slightly deflected upwardly, as illustrated, ifdesired. vIt vis contemplated that this safety supporting member 7 shallbe possessed of sufficient strength and rigidity to support the brakebeam and the parts carried thereby, so as to hold the Vsame againstfalling tothe track in the event it becomes detached from othervsupporting means.

Secured to the safety supporting member is a resilient guiding member 8,which is in the form of a strip'of flat spring` metal attached at oneextremity to the member 'T and arranged so that its upper surface is atan inclination'. Any desired form of third` point support shoe 10 iscarried by the strut member 5 in roper position for cooperation with theresilient guiding' support 8, the arrangement being such that the outereX tremity of the strut is supported upon and guided by the resilientguiding member 8 while having the necessary sliding move-V mentthereon-such as to permit the application and removal of the brakes.rIhe inclination of the resilient supporting member 8, or moreproperlyvits nearradiai position relative to the `truck wheels, operatesto guide the brakek yshoe so as yto insure their making proper facecontact with the wheels, While the' resilient flexibility of thesupporting member accommodates the movement of the beam incident to thesetting of the brakes and assists in removal of the shoes from contactwith the wheels' when the brakes are released. Y

In the event of inadvertent detachment of the brake beam from its normalsupporting` means, the safety supporting member will carry it, thuspreventing its dropping to the track, and the resulting derailment ofthe truck; -v

In the modification illustrated in Fig. 2, there are two of the safetysupporting members 7, one supported on the spring plank at each side ofthe brake beam strut 5. Each of the safety supporting members 7 carriesa. resilient guiding member 8, which is disposed in proper position forcooperation with a fourth point supporting shoe l1 carried by thetension'member l of the brake beam. f

In the modification,illustrated in Figs. 3 and 4, there is a similararrangement-of safety supporting members 7 and resilient guiding members8, while the shoe Il is of conical form such as to compensate for theangular position of the tension member relativetof the guiding members 8and to ing the operation of the brakes.

guiding members 8 are so arranged that their` upper surfaces inclinetransversely of the truck or longitudinally of the brake beam, wherebyto enable Ythe tension member Zl, in its Vangular position, to havesup-- porting contact with them throughout their widths. i

Figs. 8, 9, l0, and ll show various vfashions in which .the resilientguiding'y mein` ber 8 may be supported on the safety sup porting member7. In Fig. 8, the outer eX- tremity of the 'resilient guiding member isreversely turned Aand bears upontlie upper` surface of the member 7,thereby giving thl guiding member additional support and resiliency. InVFig. 9 the resilient guiding member 8 is connected to the member 7 atits outer extremity, and has free bearing engagement with the Amember Tat-its inner extremity'. In Figs. 10 'and l0, the outer extremity of theguiding member 8 is reversely turned and deflected below the'upperflange of the member 7 and notched to accommodate the lou/er flange ofthe latter member,whereby to give'the member 8 additional securityagainst deflection from its proper alinement.' In Fig. ll the resilientguiding member includes a strip 8 weich is slidably supported on boltsSb'which'- ei;- tend upwardly from the member' 7, said .strip 8 beingafforded a resilient support by the springs Scwliich are held on'thebolts Sbbetween the strip and the member i'.

In Figs, 12, 13, le of the invention is modified to the extent that theresilient guiding member which permits the desired iezrible cooperationbetween the brake beam and the safety supporting member 7, is carried bya bralre beam part instead of by the rigid safety supporting member. Inthese forms the upward inclination of the outer portion of thesupporting member 7 gives the outer end of the strut the proper changein elevation dur In. the form illustrated in Fig. l2, the resilientguiding member is designated by thenumeral 14, and it is in the form ofa spring lfoot carried by the strut and slidably supported upon thesloping outer portion of the safety supporting member 7. In thisconstruction the resilient member 14 gives vthe necessary flexibilitybetween the outer endof the strut and thev rigid means which supportsand and 15, the embodiment guides it. n Fig. 13, the same arrangement isemployed with the resilient member of a strut by the slotand pinconnectionw 16 and a spring 14a.

-F rom the foregoing, it will be observed that my invention resides incertain improvements wherebyy added strength and safety are securedwhile the necessary resilient guiding, supporting and operating functions are retained.

WVhat I claim is:

l. in a truck, a safety device and third point support including thebrake beam, a rigid bar member affixed to a truck portion and extendingbelow the beam, and an interposed resilientl member associated with thebeam and the bar member to support the former upon the latter in movablerelationship.

2. In a truck, a brake beam, a rigid bar member affixedto a truck partand extending beneath the beam, and an interposed elastic memberassociated with the beam and the bar member for supporting the formerupon the latter for sliding movement longitudinally thereof.

In a truck, the combination of a brake beam, a rigid bar member affixedlto a truck portion and extending below the beamand beyond its forwardextremity and having sufiicient strength to carry the same, and anV'portion and extending transversel and a yielding pressure meansinterposed between the beam and the bar for. supporting theformer uponthe latter to permit the beam to have movement towardv the bar memberagainst the influence 0f said means,

and to permit the beam to have movementf,

also longitudinally of the-bar member. f p

5. n a truck, the combination of a brake beam, a rigid bar memberaffixed to a truck below and beyond the beam, said bar mem er havingstrength ,sufficient to carry the beam, v`

and an interposed resilient member associated with the beam and with thebar member' to provide a third or fourtlrpoint sup-v terposed resilientmember associated withy the beam rand the bar member to provide a thirdor fourth point support for the former upon the latter.

7 In a car' truck, a brake beam, a rigid fbar mounted to underlie saidbeam, land a resilient member engaging said bar and beam, said memberbeing mounted for sliding movement relative to'said bar, substantiallyas described.

8. ,In a car truck, a swinging brake beam,

arigid horizontal bar underlying said beam, and a resilient'memberhaving'a bearing on said beam and bar and slidable relative to onethereof, substantially as described.

In testimony whereof I hereunto afIiX my signature in the presence oftwo witnesses,

this 9th day of February,l19l7.

oHAnLE-s names wiLLiaiiis.` Witnesses: f

` E. G. BUssE.,

E. T. WALKER. fr

